fix(web(js)): remove calls to deprecated functions in ng-material

UI/WebServerResources/scss/components/input/_extends.scss

@@ -1,3 +1,2 @@
 /*! input/_extends.scss - */
-@import '../../../angular-material/src/components/input/input-variables.scss';
 @import '../../../angular-material/src/components/input/input.scss';

UI/WebServerResources/scss/components/input/input-variables.scss

@@ -0,0 +1,3 @@
+/// input-variables.scss -*- Mode: scss; indent-tabs-mode: nil; basic-offset: 2 -*-
+
+@import '../../../angular-material/src/components/input/input-variables.scss';